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WO/1995/010635A1 |
A process for producing a hot forging steel of ferrite plus bainite type which comprises hot forging a steel material containing, on the weight basis, 0.10-0.35 % of carbon, 0.15-2.00 % of silicon, 0.40-2.00 % of manganese, 0.03-0.10 % o...
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WO/1995/002705A1 |
High strength steel parts and method of making are disclosed by providing a blank of high-strength steel material having a tensile strength of at least about 120,000 psi and a yield strength of at least about 90,000 psi and warm forming ...
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WO/1995/001459A1 |
Steel with ultrafine grains is produced by altering the transformation from one which normally proceeds with grain boundary nucleation followed by intragranular nucleation at deformation bands and other defects, to one which induces a su...
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WO/1994/023085A1 |
The invention provides a steel material for non-heat-treated steel parts having a high strength in a state formed by hot working. A high-strength non-heat-treated steel for hot forging, which contains carbon, silicon, manganese, chromium...
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WO/1994/021427A1 |
The invention relates to a process for hard-rolling a component (2) to be loaded along a load axis (1) in a notch (3) running approximately parallel to the load axis (1) and having a minimum radius of curvature (4) to be determined in a ...
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WO/1994/013842A1 |
A method of making high-strength steel parts is disclosed by providing a blank of high-strength steel having a ferrite-pearlite microstructure and high-strength mechanical properties and cold forming the blank by upsetting, forging, or e...
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WO/1994/004297A1 |
The method and apparatus for reclaiming substantially pure sand from a heat treating furnace (19); wherein a casting with sand core and/or sand mold, comprising sand bound by a combustible binder, attached thereto is introduced into the ...
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WO/1993/023576A1 |
Apparatus for effecting domain refinement of electrical steels comprises an assembly of an array of rotatable members (2) mounted within a supporting structure (3) and movable into direct contact with the surface of a strip or sheet of e...
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WO/1993/020247A1 |
Device comprising an ultrasonic oscillation transducer (1), an acoustic transmitter (2) made from a titanium alloy, disposed in space in a given manner and connected to the transducer (1) by means of a contact surface (3), a work chamber...
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WO/1993/018869A1 |
The invention concerns a process for reducing scale formation during hot forming of metal, in particular steel. The metal, which is formed in its heated state and under brief high pressure, the deformation being substantially plastic, is...
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WO/1993/018189A1 |
Sway bars (10) made of high strength steel having grains (15) with a preferred orientation, and methods of making such sway bars (10) from blanks of high strength steel typically having a yield strength of at least about 90,000 psi and a...
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WO/1993/015233A1 |
High strength steel parts and method of making are disclosed by providing a blank of high-strength steel material having a tensile strength of at least about 120,000 psi and a yield strength of at least about 90,000 psi and warm forming ...
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WO/1992/008817A1 |
A high-strength ultrafine steel wire with excellent workability in stranding, which comprises, by weight, 0.85 to 1.10 % of carbon, 0.10 to 0.70 % of silicon, 0.20 to 0.60 % of manganese, 0.10 to 0.60 % of chromium, 0.005 % or less of al...
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WO/1992/007966A1 |
High strength steel parts and method of making are disclosed by providing a blank of high-strength steel material having a tensile strength of at least about 120,000 psi and a yield strength of at least about 90,000 psi and warm forming ...
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WO/1992/005897A1 |
A gear wheel is formed from a pressed and sintered powder metal blank (2) by surface hardening the tooth, root and flank regions to establish densification in the range of 90 to 100 per cent to a depth of at least 380 microns.
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WO/1990/011849A1 |
A method of producing a so-called 'rollable metal sheet' having high rollability, essentially comprising the step of supplying continuously molten metal to a cooling member whose cooling surface consists of one or two surfaces and are mo...
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WO/1989/010806A1 |
A method for correction shape deviations in hard, hardened objects in which the objects are heated to a temperature which lies beneath the temperature at which the structure imparted to the objects during a preceding heating process (e.g...
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WO/1988/007588A1 |
The invention relates to a material (504), having adjacent regions of differing strength and ductility, that has been formed by rapidly deforming a suitable base metal (501) having a banded structure, such as illustratively a previously ...
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WO/1988/007587A1 |
The invention relates to apparatus and accompanying methods for use therein for forming a material (504), which has high strength and good workability, by rapidly deforming a suitable base metal (501) having a banded structure, such as i...
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WO/1987/004093A1 |
A method of preparing a metal base for a memory disk, wherein coining is performed by placing a metal blank material (6) between two dies having smooth working surfaces within a metal mold (3) which confines the spreading of the blank ma...
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WO/1987/000866A1 |
An ultra high carbon steel having a composition of carbon in an amount of from about 0.8 weight percent up to the maximum solubility limit of carbon in austenite; silicon in an amount of from about 3 to about 7 weight percent; an effecti...
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WO/1985/002566A1 |
A penetrator (60) is made in accordance with a method for increasing strength and/or hardness of a metal specimen. Compressive force is applied to the specimen slowly so that the yield strength of the specimen progressively increases and...
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WO/1984/002481A1 |
A method for increasing strength and/or hardness of a preshaped metal specimen (18) by cold working. Compressive force is applied to the specimen slowly so that the yield strength of the specimen progressively increases and the specimen ...
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WO/1984/001586A1 |
Armouring bars which are treated by hardening in a cooling liquid and thereafter by drawing temper owing to the core heat exhibit a mantel treated by hardening and drawing temper having an uneven thickness so that it is difficult to bend...
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WO/1983/002783A1 |
A method of continuously casting a molten ferrous alloy in a casting means (12) to obtain a solidified cast bar (20) at a hot-forming temperature, passing the cast bar (20) at a hot-forming temperature from the casting means (12) to a ho...
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WO/1983/000168A1 |
The semi-finished and finished products of an aluminum, copper, nickel and iron alloy with or without oxydic dispersoids are obtained by thermoforming, wherein the forming is carried out isothermally or quasi-isothermally in a single ste...
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JP2024059023A |
The present invention provides a steel sliding component that can reduce the coefficient of friction. [Solution] A steel sliding component (10) of the present embodiment has a circular or annular cross section perpendicular to the centra...
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JP2024059022A |
An object of the present invention is to provide a steel gear that can reduce the coefficient of friction. [Solution] A steel gear (1) of the present embodiment includes a quench-hardened layer formed on a surface layer including tooth s...
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JP7471206B2 |
To provide a surface treatment method of a steel material capable of improving fatigue strength.A first nitriding treatment process for forming a nitrogen diffusion layer in an atmosphere following formulas (1)(2)(5), and a second nitrid...
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JP7467312B2 |
To provide a laser peening device and a laser peening method capable of applying compressive stress to the interior of a hole that is sealed at its one end, such as a cooling hole in a mold, etc.A laser peening device that performs laser...
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JP2024046937A |
An object of the present invention is to provide a gear that can improve the bending (fatigue) strength on the root side (particularly the fillet part). The present invention is a gear in which the fillet on the root side has a compressi...
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JP2024042978A |
[Problem] To provide a steel component that can reduce the coefficient of friction. [Solution] A steel component (1) of the present embodiment includes a disc-shaped or cylindrical main body (10), and the main body (10) includes a quench...
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JP2024025848A |
An object of the present invention is to provide a steel gear that can reduce the coefficient of friction. [Solution] A steel gear (1) of the present embodiment includes a carburized hardened layer formed on a surface layer including the...
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JP7437004B2 |
A dynamic impacting method comprises:A. preparation of metallic glass particles or liquid metal alloy particles (1); andB. bombardment of the metallic glass particles or liquid metal alloy particles (1) against a substrate (2) to harden ...
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JP7435309B2 |
A surface treatment method includes: a first step of applying a plane wave-shaped shock wave to a workpiece to cause high-density transition to occur in a material structure of the workpiece; and a second step of applying a spherical wav...
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JP2024016464A |
[Problem] To effectively reduce residual stress in a welded part due to multilayer welding. [Solution] A tank manufacturing method is a tank manufacturing method in which a tank is manufactured by jointly welding steel plates constitutin...
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JP7426058B2 |
To enable coverage measurement to be performed even for a machining surface that has such surface properties that coverage measurement is difficult by only binarization processing of an imaged image.Provided is a coverage measurement met...
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JP7423748B2 |
A coated steel substrate coated with a first coating including above 40 wt. % of chromium and optionally one or several elements chosen from yttrium, silicon, calcium, titanium, zirconium, vanadium, niobium and nickel in an amount below ...
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JP7414615B2 |
To provide an austenitic stainless steel sheet for construction material that has an excellent corrosion resistance even when the surface is roughened to ensure anti-glare property.The austenitic stainless steel sheet for construction ma...
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JP2023554297A |
[Problem] Low yield strength and excellent low-temperature impact toughness. Provided is a steel material for a seismic damper that can be used to ensure the earthquake resistance of a structure from an earthquake, and a method for manuf...
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JP7397318B2 |
To provide a method for manufacturing a steel plate which can manufacture a steel plate that suppresses a part having a problem of hardness in quality on an object surface, a method for manufacturing a steel pipe, an apparatus for manufa...
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JP7386606B2 |
Example implementations relate to techniques for refining the microstructure of metallic materials used for additive manufacturing. An example can involve generating a first layer of an integral object using a material with grains struct...
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JP2023165551A |
To improve an alloy steel for build-up welding on the press face against a hot slab in a tool for hot-width compression pressing, enhance its wear resistance, heat crack resistance and high-temperature oxidation resistance, and further e...
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JP7380962B1 |
To provide square steel pipes with excellent buckling resistance. In a square steel pipe having a plurality of flat plate portions and corner portions alternately in the circumferential direction, the yield strength of the flat plate por...
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JP7365095B2 |
To improve a fatigue life of a weld zone in an existing bridge and efficiently repair a crack existing in the weld zone.A method for improving a fatigue life of a weld zone 60 in an existing bridge and for repairing a crack C in the weld...
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JP7364867B2 |
To provide a welding joint capable of reducing an influence on welding construction due to a construction error of an interval between metal plates butted to each other when performing one-side butting.A welding joint is equipped with: a...
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JP7359411B2 |
Provided is a preventive maintenance method for a steel bridge, which can drastically shorten a construction period, drastically shorten a cost, and exactly determine whether peening treatment is properly performed. The preventive mainte...
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JP2023144640A |
To provide a steel materials for cold forging and nitriding that have an excellent balance between processability during cold forging and nitriding property.Provided is a steel for nitriding, which is a steel that has, in mass%, C:0.20 t...
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JP2023144674A |
To provide a steel for nitriding having excellent nitriding property that has both cold forgeability and core part hardness.Provided is a steel for nitriding, which is a steel that has, in mass%, C:0.20 to 0.45%, Si:0.1 to 0.4%, Mn:0.2 t...
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JP2023142841A |
To provide a conductive member that has low contact resistance and high corrosion resistance.Abrasive grains are projected onto a stainless steel foil containing 11 mass% or more of chromium, having a thickness of less than 0.3 mm, and c...
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